Answer
33
Work Step by Step
$(f-g)(x)=f(x)-g(x)$
$(f-g)(x)=f(x)-g(x)=x^2-3x+8-(-2x-5)=x^2-x+13$
Plug in $x=5$ into $(f-g)(x)$: $(f-g)(5)=(5)^2-5+13=25-5+13=33$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 2 - Mid-Chapter Check Point - Page 135: 19
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